<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>06-css常用样式.html</title>
    <style>
        div{
            color: red;
            border: 1px solid blue;
            width: 300px;
            height: 300px;
            background-color: aqua;
            font-size: 30px;
            margin-left: auto;
            margin-right: auto;
            text-align: center;/*文字居中*/
        }
        table{
            border: 1px solid red;
            border-collapse: collapse;/*合并边框*/
        }
        td{
            border: 1px red solid;/*给td标签加上边框*/
        }
        a {
            text-decoration: none;/*取消下划线*/
        }

        ul{
            list-style: none;/*取消前面的符号*/
        }
    </style>
</head>
<body>
    <ul>
        <li>11111111111</li>
        <li>11111111111</li>
        <li>11111111111</li>
        <li>11111111111</li>
        <li>11111111111</li>
    </ul>
    <table>
        <tr>
            <td>1.1</td>
            <td>1.2</td>
        </tr>
    </table>
    <a href="https://www.shiyiri.top">博客</a>
    <div>
        我是div标签
    </div>

</body>
</html>